When rounding a decimal number to the nearest whole number, you look at the first decimal place. If it is 5 or greater, you round up; if it is less than 5, you round down. In this case, 5.3 has a tenths place value of 3, which is less than 5. Therefore, when rounding 5.3 to the nearest whole number, it becomes 5.
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Ah, what a happy little question! When we round 5.3 to the nearest whole number, we see it's closest to 5. So, 5.3 becomes 5. Just like adding a touch of color to a painting can bring it to life, rounding numbers can make them easier to work with.
Well, honey, 5.3 rounded to the nearest whole number is 5. I mean, it's not rocket science. Just lop off that pesky decimal point and call it a day.